Remove needless space

The -x and -y options now stand for --xlabel and --ylabel.

These options should be used to specify the series in the future.

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
     strategy:
       matrix:
         os:   ['ubuntu', 'macos']
-        ruby: [ '2.6', '2.7', '3.0' ]
+        ruby: [ '2.4', '2.5', '2.6', '2.7', '3.0' ]
     steps:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1

README.md

@@ -1,16 +1,16 @@
-<p align="center">
-  <img src="logo.svg" width="60%" height="60%" />
-</p>
+<div align="center">
+  <img src="logo.svg">
+  <hr>
+  <img alt="Build Status" src="https://github.com/red-data-tools/YouPlot/workflows/test/badge.svg">
+  <a href="https://rubygems.org/gems/youplot/"><img alt="Gem Version" src="https://badge.fury.io/rb/youplot.svg"></a>
+  <a href="https://zenodo.org/badge/latestdoi/283230219"><img alt="DOI" src="https://zenodo.org/badge/283230219.svg"></a>
+  <a href="https://rubydoc.info/gems/youplot/"><img alt="Docs Stable" src="https://img.shields.io/badge/docs-stable-blue.svg"></a>
+  <a href="LICENSE.txt"><img alt="The MIT License" src="https://img.shields.io/badge/license-MIT-blue.svg"></a>
   
-![Build Status](https://github.com/kojix2/youplot/workflows/test/badge.svg)
-[![Gem Version](https://badge.fury.io/rb/youplot.svg)](https://badge.fury.io/rb/youplot)
-[![Docs Stable](https://img.shields.io/badge/docs-stable-blue.svg)](https://rubydoc.info/gems/youplot)
-[![The MIT License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE.txt)
-[![DOI](https://zenodo.org/badge/283230219.svg)](https://zenodo.org/badge/latestdoi/283230219)
-
-YouPlot is a command line tool for Unicode Plotting working with data from standard stream.
+  YouPlot is a command line tool that draws plots on the terminal.
 
   :bar_chart: Powered by [UnicodePlot](https://github.com/red-data-tools/unicode_plot.rb)
+</div>
 
 ## Installation
 
@@ -20,8 +20,9 @@ gem install youplot
 
 ## Quick Start
 
-* `cat data.tsv | uplot <command> [options]` or
-* `uplot <command> [options] <data.tsv>`
+<img alt="barplot" src="https://user-images.githubusercontent.com/5798442/101999903-d36a2d00-3d24-11eb-9361-b89116f44122.png" width=160> <img alt="histogram" src="https://user-images.githubusercontent.com/5798442/101999820-21cafc00-3d24-11eb-86db-e410d19b07df.png" width=160> <img alt="scatter" src="https://user-images.githubusercontent.com/5798442/101999827-27284680-3d24-11eb-9903-551857eaa69c.png" width=160> <img alt="density" src="https://user-images.githubusercontent.com/5798442/101999828-2abbcd80-3d24-11eb-902c-2f44266fa6ae.png" width=160> <img alt="boxplot" src="https://user-images.githubusercontent.com/5798442/101999830-2e4f5480-3d24-11eb-8891-728c18bf5b35.png" width=160>
+
+`uplot <command> [options] <data.tsv>`
 
 ### barplot
 
@@ -100,10 +101,6 @@ curl -sL https://git.io/IRIStsv \
 
 ### count
 
-In this example, YouPlot counts the number of chromosomes where the gene is located from the human gene annotation file and it creates a bar chart. The human gene annotation file can be downloaded from the following website.
-
-* https://www.gencodegenes.org/human/
-
 ```sh
 cat gencode.v35.annotation.gff3 \
 | grep -v '#' | grep 'gene' | cut -f1 \
@@ -114,23 +111,21 @@ cat gencode.v35.annotation.gff3 \
   <img alt="count" src="https://user-images.githubusercontent.com/5798442/101999832-30b1ae80-3d24-11eb-96fe-e5000bed1f5c.png">
 </p>
 
+In this example, YouPlot counts the number of chromosomes where genes are located. 
+* [GENCODE - Human Release](https://www.gencodegenes.org/human/)
+
 Note: `count` is not very fast because it runs in a Ruby script.
 This is fine in most cases, as long as the data size is small. If you want to visualize huge data, it is faster to use a combination of common Unix commands as shown below.
 
 ```sh
 cat gencode.v35.annotation.gff3 | grep -v '#' | grep 'gene' | cut -f1 \
-| sort | uniq -c | sort -nrk2 | awk '{print $2,$1}' \
-| uplot bar -d ' ' -t "The number of human gene annotations per chromosome"  -c blue
+| sort | uniq -c | sort -nrk1 \
+| uplot bar --fmt yx -d ' ' -t "The number of human gene annotations per chromosome"  -c blue
 ```
 
 ## Usage
 
-### Why YouPlot?
-
-Wouldn't it be a pain to have to run R, Python, Julia, gnuplot or whatever REPL just to check your data?
-YouPlot is a command line tool for this purpose. With YouPlot, you can continue working without leaving your terminal and shell.
-
-### How to use YouPlot?
+### Commands
 
 `uplot` is the shortened form of `youplot`. You can use either.
 
@@ -140,18 +135,7 @@ YouPlot is a command line tool for this purpose. With YouPlot, you can continue
 | `uplot <command> [options] data.tsv ...`       | Take input from files             |
 | `pipeline1 \| uplot <command> -O \| pipeline2` | Outputs data from stdin to stdout |
 
-### Where to output the plot?
-
-By default, the plot is output to *standard error output*.
-The output file or stream for the plot can be specified with the `-o` option.
-
-### Where to output the input data?
-
-By default, the input data is not shown anywhere.
-The `-O` option, with no arguments, outputs the input data directly to the standard output. 
-This is useful when passing data to a subsequent pipeline.
-
-### What types of plots are available?
+### Subcommands
 
 The following sub-commands are available.
 
@@ -164,74 +148,83 @@ The following sub-commands are available.
 | scatter   | s     | draw a scatter plot                    |
 | density   | d     | draw a density plot                    |
 | boxplot   | box   | draw a horizontal boxplot              |
-
-See Quick Start for `count`.
-
-| command   | short | how it works                                             |
-|-----------|-------|----------------------------------------------------------|
+|           |       |                                        |
 | count     | c     | draw a barplot based on the number of occurrences (slow) |
+|           |       |                                        |
+| colors    | color | show the list of available colors      |
 
-### What if the header line is included?
+### Output the plot
 
-If your input data contains a header line, you need to specify the `-H` option.
+* `-o`
+  * By default, the plot is output to **standard error output**.
+  * If you want to output to standard input, Use hyphen ` -o -` or no argument `uplot s -o | `.
 
-### How to specify the delimiter?
+### Output the input data
 
-Use the `-d` option. To specify a blank space, you can use `uplot bar -d ' ' data.txt`. 
-You do not need to use `-d` option for tab-delimited text since the default value is tab.
+* `-O`
+  * By default, the input data is not shown anywhere.
+  * If you want to pass the input data directly to the standard output, Use hyphen `-O -` or no argument `uplot s -O |`.
+  * This is useful when passing data to a subsequent pipeline.
 
-### Is there a way to specify a column as the x-axis or y-axis?
+### Header
 
-Not yet. 
-YouPlot treats the first column as the X axis and the second column as the Y axis. 
-When working with multiple series, the first column is the X axis, the second column is series Y1, the third column is series Y2, and so on. 
-If you pass only one column of data for `line` and `bar`, YouPlot will automatically use a sequential number starting from 1 as the X-axis. 
+* `-H`
+  * If input data contains a header line, you need to specify the `-H` option.
 
-* `--fmt xyy` `--fmt xyxy` `--fmt yx` options give you a few more choices. 
-See `youplot <command> --help` for more details. 
+### Delimiter
 
-* Use `awk '{print $2, $1}'` to swap lines.
-* Use `paste` to concatenate series.
+* `-d`
+  * You do not need to use `-d` option for tab-delimited text since the default value is tab.
+  * To specify a blank space, you can use `uplot bar -d ' ' data.txt`. 
 
-### How to plot real-time data?
+### Real-time data
 
-Experimental progressive mode is currently under development.
+* `-p` `--progress`
+  * Experimental progressive mode is currently under development.
+  * `ruby -e 'loop{puts rand(100)}' | uplot line --progress`
 
-```sh
-ruby -e 'loop{puts rand(100)}' | uplot line --progress
-```
+### Show detailed options for subcommands
 
-### How to view detailed command line options?
+* `--help`
+  * The `--help` option will show more detailed options for each subcommand.
+  * `uplot hist --help`
 
-Use `--help` to print command-specific options.
+### Set columns as x-axis or y-axis
 
-`uplot hist --help`
+* YouPlot treats the first column as the X axis and the second column as the Y axis. When working with multiple series, the first column is the X axis, the second column is series Y1, the third column is series Y2, and so on. 
+* If you pass only one column of data for `line` and `bar`, YouPlot will automatically use a sequential number starting from 1 as the X-axis. 
 
-```
-Usage: uplot histogram [options] <in.tsv>
+* `--fmt`
+  * `--fmt xyy` `--fmt xyxy` `--fmt yx` options give you a few more choices. See `youplot <command> --help` for more details. 
+  * The fmt option may be renamed in the future. 
+  * The `-x` and `-y` options might be used to specify columns in the future.
 
-Options for histogram:
-        --symbol VAL         character to be used to plot the bars
-        --closed VAL         side of the intervals to be closed [left]
-    -n, --nbins VAL          approximate number of bins
+* Use `awk '{print $2, $1}'` to swap columns. Use `paste` to concatenate series.
 
-Options:
-...
-```
+### Categorical data
 
-### How to view the list of available colors?
+* With GNU datamash, you can manage to handle categorized data. 
+  * `cat test/fixtures/iris.csv | sed '/^$/d' | datamash --header-in --output-delimiter=: -t, -g5 collapse 3,4 | cut -f2-3 -d: | sed 's/:/\n/g' | uplot s -d, -T --fmt xyxy`
+  * This is not so easy...
 
-```sh
-uplot colors
-```
+### Time series
+
+* Not yet supported.
+
+## Tools that are useful to use with YouPlot
+
+* [csvtk](https://github.com/shenwei356/csvtk)
+* [GNU datamash](https://www.gnu.org/software/datamash/)
+* [awk](https://www.gnu.org/software/gawk/)
+* [xsv](https://github.com/BurntSushi/xsv)
 
 ## Contributing
 
 YouPlot is a library under development, so even small improvements like typofix are welcome!
 Please feel free to send us your pull requests.
 
-* [Report bugs](https://github.com/kojix2/youplot/issues)
-* Fix bugs and [submit pull requests](https://github.com/kojix2/youplot/pulls)
+* [Report bugs](https://github.com/red-data-tools/YouPlot/issues)
+* Fix bugs and [submit pull requests](https://github.com/red-data-tools/YouPlot/pulls)
 * Write, clarify, or fix documentation
   * English corrections by native speakers are welcome.
 * Suggest or add new features
@@ -245,11 +238,11 @@ git clone https://github.com/your_name/YouPlot
 bundle install             # Install the gem dependencies
 bundle exec rake test      # Run the test
 bundle exec rake install   # Installation from source code
+bundle exec exe/uplot      # Run youplot (Try out the edited code)
 ```
 
 ### Acknowledgements
 
-* [Red Data Tools](https://github.com/red-data-tools) - Technical support
 * [sampo grafiikka](https://jypg.net/sampo_grafiikka) - Project logo creation
 * [yutaas](https://github.com/yutaas) - English proofreading
 

lib/youplot/backends/processing.rb

@@ -6,22 +6,30 @@ module YouPlot
     module Processing
       module_function
 
-      def count_values(arr, tally: true)
+      def count_values(arr, tally: true, reverse: false)
         # tally was added in Ruby 2.7
+        result = \
           if tally && Enumerable.method_defined?(:tally)
             arr.tally
           else
             # value_counts Enumerable::Statistics
             arr.value_counts(dropna: false)
           end
-          .sort do |a, b|
+
+        # sorting
+        result = result.sort do |a, b|
           # compare values
           r = b[1] <=> a[1]
           # If the values are the same, compare by name
-            r = a[0] <=> b[0] if r == 0
+          r = a[0] <=> b[0] if r.zero?
           r
         end
-          .transpose
+
+        # --reverse option
+        result.reverse! if reverse
+
+        # prepare for barplot
+        result.transpose
       end
     end
   end

lib/youplot/backends/unicode_plot.rb

@@ -6,6 +6,27 @@
 require_relative 'processing'
 require 'unicode_plot'
 
+# If the line color is specified as a number, the program will display an error
+# message to the user and exit. Remove this patch when UnicodePlot is improved.
+
+module UnicodePlot
+  class << self
+    alias lineplot_original lineplot
+    def lineplot(*args, **kw)
+      if kw[:color].is_a? Numeric
+        warn <<~EOS
+          YouPlot: Line colors cannot be specified by numerical values.
+
+          For more information, please see the following issue.
+          https://github.com/red-data-tools/unicode_plot.rb/issues/34
+        EOS
+        YouPlot.run_as_executable ? exit(1) : raise(Error)
+      end
+      lineplot_original(*args, **kw)
+    end
+  end
+end
+
 module YouPlot
   # plotting functions.
   module Backends
@@ -14,12 +35,12 @@ module YouPlot
 
       module_function
 
-      def barplot(data, params, fmt = nil, count: false)
+      def barplot(data, params, fmt = nil, count: false, reverse: false)
         headers = data.headers
         series = data.series
         # `uplot count`
         if count
-          series = Processing.count_values(series[0])
+          series = Processing.count_values(series[0], reverse: reverse)
           params.title = headers[0] if headers
         end
         if series.size == 1
@@ -182,7 +203,7 @@ module YouPlot
         series = data.series
         if series.size == 1
           warn <<~EOS
-            youplot: There is only one series of input data. Please check the delimiter.
+            YouPlot: There is only one series of input data. Please check the delimiter.
 
             Headers: \e[35m#{data.headers.inspect}\e[0m
             The first item is: \e[35m\"#{series[0][0]}\"\e[0m

lib/youplot/command.rb

@@ -146,7 +146,7 @@ module YouPlot
       when :bar, :barplot
         @backend.barplot(data, params, options[:fmt])
       when :count, :c
-        @backend.barplot(data, params, count: true)
+        @backend.barplot(data, params, count: true, reverse: options[:reverse])
       when :hist, :histogram
         @backend.histogram(data, params)
       when :line, :lineplot
@@ -169,7 +169,7 @@ module YouPlot
     def output_data(input)
       # Pass the input to subsequent pipelines
       case options[:pass]
-      when IO
+      when IO, StringIO
         options[:pass].print(input)
       else
         if options[:pass]

lib/youplot/dsv.rb

@@ -14,7 +14,7 @@ module YouPlot
 
       # Remove blank lines
       arr.delete_if do |i|
-        i == [] or i.all? nil
+        i == [] or i.all?(&:nil?)
       end
 
       # get header

lib/youplot/options.rb

@@ -11,8 +11,8 @@ module YouPlot
     :fmt,
     :progressive,
     :encoding,
-    :color_names,
-    :debug,
-    keyword_init: true
+    :reverse,      # count
+    :color_names,  # color
+    :debug
   )
 end

lib/youplot/parser.rb

@@ -15,16 +15,16 @@ module YouPlot
       @command = nil
 
       @options = Options.new(
-        delimiter: "\t",
-        transpose: false,
-        headers: nil,
-        pass: false,
-        output: $stderr,
-        fmt: 'xyy',
-        progressive: false,
-        encoding: nil,
-        color_names: false,
-        debug: false
+        "\t",    # elimiter:
+        false,   # transpose:
+        nil,     # headers:
+        false,   # pass:
+        $stderr, # output:
+        'xyy',   # fmt:
+        false,   # progressive:
+        nil,     # encoding:
+        false,   # color_names:
+        false    # debug:
       )
 
       @params = Parameters.new
@@ -58,13 +58,13 @@ module YouPlot
         parser.on('-t', '--title STR', String, 'print string on the top of plot') do |v|
           params.title = v
         end
-        parser.on('-x', '--xlabel STR', String, 'print string on the bottom of the plot') do |v|
+        parser.on('--xlabel STR', String, 'print string on the bottom of the plot') do |v|
           params.xlabel = v
         end
-        parser.on('-y', '--ylabel STR', String, 'print string on the far left of the plot') do |v|
+        parser.on('--ylabel STR', String, 'print string on the far left of the plot') do |v|
           params.ylabel = v
         end
-        parser.on('-w', '--width INT', Integer, 'number of characters per row') do |v|
+        parser.on('-w', '--width INT', Numeric, 'number of characters per row') do |v|
           params.width = v
         end
         parser.on('-h', '--height INT', Numeric, 'number of rows') do |v|
@@ -118,7 +118,7 @@ module YouPlot
 
           Program: YouPlot (Tools for plotting on the terminal)
           Version: #{YouPlot::VERSION} (using UnicodePlot #{UnicodePlot::VERSION})
-          Source:  https://github.com/kojix2/youplot
+          Source:  https://github.com/red-data-tools/YouPlot
 
           Usage:   uplot <command> [options] <in.tsv>
 
@@ -130,10 +130,9 @@ module YouPlot
               scatter    s             draw a scatter plot
               density    d             draw a density plot
               boxplot    box           draw a horizontal boxplot
-              colors     color         show the list of available colors
-
               count      c             draw a baplot based on the number of
                                        occurrences (slow)
+              colors     color         show the list of available colors
 
           General options:
               --help                   print command specific help menu
@@ -163,20 +162,21 @@ module YouPlot
     end
 
     def sub_parser_add_canvas
-      sub_parser.on_head('--canvas STR', String, 'type of canvas') do |v|
+      canvas_types = UnicodePlot::Canvas::CANVAS_CLASS_MAP.keys.join(', ')
+      sub_parser.on_head('--canvas STR', String, 'type of canvas', "(#{canvas_types})") do |v|
         params.canvas = v.to_sym
       end
     end
 
     def sub_parser_add_xlim
       sub_parser.on_head('--xlim FLOAT,FLOAT', Array, 'plotting range for the x coordinate') do |v|
-        params.xlim = v
+        params.xlim = v.map(&:to_f)
       end
     end
 
     def sub_parser_add_ylim
       sub_parser.on_head('--ylim FLOAT,FLOAT', Array, 'plotting range for the y coordinate') do |v|
-        params.ylim = v
+        params.ylim = v.map(&:to_f)
       end
     end
 
@@ -226,6 +226,9 @@ module YouPlot
         sub_parser_add_xscale
 
       when :count, :c
+        sub_parser.on_head('-r', '--reverse', TrueClass, 'reverse the result of comparisons') do |v|
+          options.reverse = v
+        end
         sub_parser_add_symbol
         sub_parser_add_xscale
 
@@ -270,7 +273,7 @@ module YouPlot
         sub_parser_add_xlim
 
       when :colors, :color, :colours, :colour
-        sub_parser.on_head('-n', '--names', 'show color names only', TrueClass) do |v|
+        sub_parser.on_head('-n', '--names', TrueClass, 'show color names only') do |v|
           options[:color_names] = v
         end
 

lib/youplot/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module YouPlot
-  VERSION = '0.4.0'
+  VERSION = '0.4.2'
 end

test/fixtures/iris-count.txt

@@ -0,0 +1,38 @@
+                     sepal_length
+       ┌                                        ┐ 
+   5.0 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 10.0   
+   5.1 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 9.0       
+   6.3 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 9.0       
+   5.7 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■ 8.0           
+   6.7 ┤■■■■■■■■■■■■■■■■■■■■■■■■■■■ 8.0           
+   5.5 ┤■■■■■■■■■■■■■■■■■■■■■■■■ 7.0              
+   5.8 ┤■■■■■■■■■■■■■■■■■■■■■■■■ 7.0              
+   6.4 ┤■■■■■■■■■■■■■■■■■■■■■■■■ 7.0              
+   4.9 ┤■■■■■■■■■■■■■■■■■■■■ 6.0                  
+   5.4 ┤■■■■■■■■■■■■■■■■■■■■ 6.0                  
+   5.6 ┤■■■■■■■■■■■■■■■■■■■■ 6.0                  
+   6.0 ┤■■■■■■■■■■■■■■■■■■■■ 6.0                  
+   6.1 ┤■■■■■■■■■■■■■■■■■■■■ 6.0                  
+   4.8 ┤■■■■■■■■■■■■■■■■■ 5.0                     
+   6.5 ┤■■■■■■■■■■■■■■■■■ 5.0                     
+   4.6 ┤■■■■■■■■■■■■■■ 4.0                        
+   5.2 ┤■■■■■■■■■■■■■■ 4.0                        
+   6.2 ┤■■■■■■■■■■■■■■ 4.0                        
+   6.9 ┤■■■■■■■■■■■■■■ 4.0                        
+   7.7 ┤■■■■■■■■■■■■■■ 4.0                        
+   4.4 ┤■■■■■■■■■■ 3.0                            
+   5.9 ┤■■■■■■■■■■ 3.0                            
+   6.8 ┤■■■■■■■■■■ 3.0                            
+   7.2 ┤■■■■■■■■■■ 3.0                            
+   4.7 ┤■■■■■■■ 2.0                               
+   6.6 ┤■■■■■■■ 2.0                               
+   4.3 ┤■■■ 1.0                                   
+   4.5 ┤■■■ 1.0                                   
+   5.3 ┤■■■ 1.0                                   
+   7.0 ┤■■■ 1.0                                   
+   7.1 ┤■■■ 1.0                                   
+   7.3 ┤■■■ 1.0                                   
+   7.4 ┤■■■ 1.0                                   
+   7.6 ┤■■■ 1.0                                   
+   7.9 ┤■■■ 1.0                                   
+       └                                        ┘ 

test/youplot/iris_test.rb

@@ -40,6 +40,8 @@ class YouPlotIRISTest < Test::Unit::TestCase
     assert_equal fixture('iris-barplot.txt'), @stderr_file.read
   end
 
+  # barplot doesn't make sense, but just to make sure it works.
+
   test :bar do
     YouPlot::Command.new(['bar', '-H', '-d,', '-t', 'IRIS-BARPLOT']).run
     assert_equal fixture('iris-barplot.txt'), @stderr_file.read
@@ -55,6 +57,8 @@ class YouPlotIRISTest < Test::Unit::TestCase
     assert_equal fixture('iris-histogram.txt'), @stderr_file.read
   end
 
+  # Yeah, lineplot/lineplots don't make sense too.
+
   test :lineplot do
     YouPlot::Command.new(['lineplot', '-H', '-d,', '-t', 'IRIS-LINEPLOT']).run
     assert_equal fixture('iris-lineplot.txt'), @stderr_file.read
@@ -105,15 +109,20 @@ class YouPlotIRISTest < Test::Unit::TestCase
     assert_equal fixture('iris-boxplot.txt'), @stderr_file.read
   end
 
-  # test :c do
-  #   YouPlot::Command.new(['count', '-H', '-d,']).run
-  #   assert_equal fixture('iris-count.txt'), @stderr_file.read
-  # end
+  # Yeah, lineplot/lineplots don't make sense too.
+  # Just checking the behavior.
 
-  # test :count do
-  #   YouPlot::Command.new(['c', '-H', '-d,']).run
-  #   assert_equal fixture('iris-count.txt'), @stderr_file.read
-  # end
+  test :c do
+    YouPlot::Command.new(['count', '-H', '-d,']).run
+    assert_equal fixture('iris-count.txt'), @stderr_file.read
+  end
+
+  test :count do
+    YouPlot::Command.new(['c', '-H', '-d,']).run
+    assert_equal fixture('iris-count.txt'), @stderr_file.read
+  end
+
+  # Output options.
 
   test :plot_output_stdout do
     YouPlot::Command.new(['bar', '-o', '-H', '-d,', '-t', 'IRIS-BARPLOT']).run

test/youplot/simple_test.rb

@@ -155,21 +155,11 @@ class YouPlotSimpleTest < Test::Unit::TestCase
     assert_equal fixture('simple-lineplot-xlabel.txt'), @stderr_file.read
   end
 
-  test :line_x do
-    YouPlot::Command.new(['line', '-x', 'X-LABEL']).run
-    assert_equal fixture('simple-lineplot-xlabel.txt'), @stderr_file.read
-  end
-
   test :line_ylabel do
     YouPlot::Command.new(['line', '--ylabel', 'Y-LABEL']).run
     assert_equal fixture('simple-lineplot-ylabel.txt'), @stderr_file.read
   end
 
-  test :line_y do
-    YouPlot::Command.new(['line', '-y', 'Y-LABEL']).run
-    assert_equal fixture('simple-lineplot-ylabel.txt'), @stderr_file.read
-  end
-
   test :line_width do
     YouPlot::Command.new(['line', '--width', '17']).run
     assert_equal fixture('simple-lineplot-width-17.txt'), @stderr_file.read

youplot.gemspec

@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
 
   spec.summary       = 'A command line tool for Unicode Plotting'
   spec.description   = 'A command line tool for Unicode Plotting'
-  spec.homepage      = 'https://github.com/kojix2/youplot'
+  spec.homepage      = 'https://github.com/red-data-tools/YouPlot'
   spec.license       = 'MIT'
   spec.required_ruby_version = Gem::Requirement.new('>= 2.4.0')